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dettativ tant .pau-u1'- entre."

ADAM W. SHIDLER, OF SOUTH BEND, INDIANA.

Letters .Patent No. 94,249; dated August 31, 1869.

IMPROLVED EVAPORATOR.

The Schedule referred to in these Letters Patent and making part ofthe-same.

To whom zt'fmay concern.-

' line x-cv, iig. l; and

Figure 3 is a longitudinal section through the line y".7/1 l. Likeletters indicate like parts in each figure.

The nature of this invention relates to an improvement in theconstruction of pans and their attachments, t'orievaporating andreducing by heat saccharine and other fluids, and consists in auarrangement for automatically deliveringthe Aiuid taken from thereceivingtank into the evaporating-pan, andl from thence into a cellulartrough from which drip-tubes, which pass through the furnace to form afire-grate, utilizing the vgreatest possible amount of heat from the felconsumed; also, in providing the last 'drip-pipe with a cock, forincreasing or diminishing the discharge of the huid, as circumstancesmay require.

A, in the drawings, represents an arch, which may be constructed ofblick or metal. v

Upon this arch I place a sheet-metal evaporatingpan, B, surmounted atthe rear end by a receivingtank, C.

D is a trough, placed on the sidel of the arch, at'its front end.

. This trough is divided into a number of cells, by transversepartitions al, which do not extend quite to its bottom, but there leaveall the cells in communication with each other.

When the iiuid in the pan rises above a given point, it flows through apipe, b, properly placed in the front end of the pan, into the trough D.

` and operating for the purpose specified.

From each of the cells an inclined pipe, E, extends through and acrossthe fire-chamber of the arch, terminating outside of .its opposite Wall,and has its end stopped Vwith a loose plug'or spile, F, from which thefluid is allowed to drip as evaporation proceeds.

The rearmost pipe is provided-With avcock or faucet, G, for increasingor diminishing the iiow of the .fluid through the pan, as circumstancesmay require.

Secured to the front of the tank C is a standard, H, pivoted to which.is a lever, I, from the rear'end of in the bottom of the'tank G.

which is suspended the plug J, forcovering the hole c To the other endof said lever is suspended a rod,

K, terminating in a fioat, L, in the rearmost cell of the trough D.

The ofiice of the lever and float is to maintain a constant supply andcirculation of the iiuid which itis A designed to evaporate, in the panand trough.

When the depth of the duid in the trough is low-v ered a little, thefloat drops with it, and raises the plug, which permits the liquid inthe tank to flow into the pau, whenceit passes into the trough, and fromthence into the pipes, from whose ends it drips into proper receptacles,whenl sufficiently reduced.

A similar trough'and its attachments may be a1'- vranged on the oppositeside of the arch, if desired,

and thus utilize the greatest amount of heat from the fuel consumed.

What I claim as my invention, and desire to secure by Letters Patent,-is,- \1. The celiular trough D, tubes E, provided with the plugs F andcock G, substantially as described,

2. In combination with the above, the tank 0, pan

. B, and arch' A, 'when constructed, arranged, and op--era-tingsubstantially and for the purposes herein set forth.

ADAM W. SHIDLER.

Witnesses:

J HENDERSON, JOHN RITTLE.

